Radix w/ 2 Bar MAP Sensor Tuning
#1
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Radix w/ 2 Bar MAP Sensor Tuning
The tuning guru guy I have been talking to (he has not yet tuned my truck but alot of radix's) says the best way to go is to use 2 bar maps. I think I understand what the diff is but am not 100%. I am trying to get a little beter fuel milage when towing with this thing, will it help? Was considering loosing my EGT and going AFR but he says it is beter to spend $$ to go to his chassis dyno tuning and 2 bar it and be done. I like the idea but it is another $300 CAD or so on top of the $400-$500 tune. Plus he is 5hrs away. Any input is appreciated.
#2
TECH Junkie
2 bar tuning allows your pcm to see boost and richen your richen the fuel mixtures,while 1 bar tuning only sees engine vacuum so you have to guess how much fuel is needed to compensate for boost.The range of the map sensor is basicly doubled with 2 bar tuning.You can tune the truck properly with either system.
#3
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I am seriously considering going 2 bar as well but I dont fully understand it. I am told that my truck wont even run on its current tune if I install a 2 bar map. Correct?
Does anyone (Say Jesse @ Wait4me) do a mail order 2 bar so I can at least drive it until I get it tweaked with my EFI Live? I dont know about tuning yet so I wouldnt be able to tune it from 1 bar to 2 without a lot of help.
So, If I understand this right the PCM will now be able to read boost (up to 15psi on a 2 bar) and the MAF? can adjust fuel based on boost not just vacuum? Close? So the PCM wouldn't be limited in the higher rpms to just the fuel tables, it could actually adjust fuel if I were lean/rich? Based on O2 readings?
Sorry if this is a hijack but I think this is what the original post was looking for as well.
Does anyone (Say Jesse @ Wait4me) do a mail order 2 bar so I can at least drive it until I get it tweaked with my EFI Live? I dont know about tuning yet so I wouldnt be able to tune it from 1 bar to 2 without a lot of help.
So, If I understand this right the PCM will now be able to read boost (up to 15psi on a 2 bar) and the MAF? can adjust fuel based on boost not just vacuum? Close? So the PCM wouldn't be limited in the higher rpms to just the fuel tables, it could actually adjust fuel if I were lean/rich? Based on O2 readings?
Sorry if this is a hijack but I think this is what the original post was looking for as well.
#4
TECH Junkie
I'm using HP tuners 2 bar tuning and like it.It also has a boost enrichment feature that enables you to scale your AFR at different levels of boost.If you plan on adding a 2 bar,you'll need to add the 2 bar programming,as your pcm will receive incorrectly scaled map readings without the programming.And you'll defenately need a wideband to get the best use out of the 2 bar tuning.
#5
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Originally Posted by 1SlowHoe
I am seriously considering going 2 bar as well but I dont fully understand it. I am told that my truck wont even run on its current tune if I install a 2 bar map. Correct?
Does anyone (Say Jesse @ Wait4me) do a mail order 2 bar so I can at least drive it until I get it tweaked with my EFI Live? I dont know about tuning yet so I wouldnt be able to tune it from 1 bar to 2 without a lot of help.
So, If I understand this right the PCM will now be able to read boost (up to 15psi on a 2 bar) and the MAF? can adjust fuel based on boost not just vacuum? Close? So the PCM wouldn't be limited in the higher rpms to just the fuel tables, it could actually adjust fuel if I were lean/rich? Based on O2 readings?
Sorry if this is a hijack but I think this is what the original post was looking for as well.
Does anyone (Say Jesse @ Wait4me) do a mail order 2 bar so I can at least drive it until I get it tweaked with my EFI Live? I dont know about tuning yet so I wouldnt be able to tune it from 1 bar to 2 without a lot of help.
So, If I understand this right the PCM will now be able to read boost (up to 15psi on a 2 bar) and the MAF? can adjust fuel based on boost not just vacuum? Close? So the PCM wouldn't be limited in the higher rpms to just the fuel tables, it could actually adjust fuel if I were lean/rich? Based on O2 readings?
Sorry if this is a hijack but I think this is what the original post was looking for as well.
And no, the 2-bar is not just plug and play. You have to have the tune compensated for it, I think the voltage outputs are scaled differently.
#6
Destroyer of Transmissions
iTrader: (28)
Originally Posted by whitt1
I'm using HP tuners 2 bar tuning and like it.It also has a boost enrichment feature that enables you to scale your AFR at different levels of boost.If you plan on adding a 2 bar,you'll need to add the 2 bar programming,as your pcm will receive incorrectly scaled map readings without the programming.And you'll defenately need a wideband to get the best use out of the 2 bar tuning.
#7
Hello Dave
iTrader: (13)
Originally Posted by thunder550
And no, the 2-bar is not just plug and play. You have to have the tune compensated for it, I think the voltage outputs are scaled differently.
Originally Posted by 1SlowHoe
Got the WB. Innovate LC1 & XD1 (I think that’s what they are called) That’s getting installed when the LT's and high flow cats go on in July. I will have to get with Jesse for the details but I think I have everything but the 2 bar sensor itself. He still owes me a tune from when I bought EFI Live from him so I should be good to go. I'll be looking to you guys for advice as I tweak the tune. I don’t know if my dyno guy is up on doing 2 bar tunes unless it’s fairly close to a regular dyno tune. I assume that a 2 bar tune is a little safer and maybe can even achieve a little more power because you can get everything tweaked more precise. IS this a good assumption? There has to be some good reason for going through all the extra trouble, right?
Another benefit is you can go to an SD tune on a boosted vehicle, which has a whole plethora of benefits (and a few drawbacks).
BTW, I can help you get rolling with a 2 bar tune if you want. Do you have EFI Live Personal or Commercial?
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#8
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I have a Wester's tune which is good for towing and for overall performance. Are the Wester's tunes this type of tune? I have not heard of this before. May have to look into as I live right in Edmonton.
Thanks
Derrick
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Derrick
#9
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Originally Posted by Blowndenalixl
I have a Wester's tune which is good for towing and for overall performance. Are the Wester's tunes this type of tune? I have not heard of this before. May have to look into as I live right in Edmonton.
Thanks
Derrick
Thanks
Derrick
#10
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Originally Posted by whitt1
I'm using HP tuners 2 bar tuning and like it.It also has a boost enrichment feature that enables you to scale your AFR at different levels of boost.If you plan on adding a 2 bar,you'll need to add the 2 bar programming,as your pcm will receive incorrectly scaled map readings without the programming.And you'll defenately need a wideband to get the best use out of the 2 bar tuning.